Why has the kiwi survived while its
relatives the moas have become extinct One reason, I think, is that it has
adopted nocturnal(夜间活动的) habits. Kiwis are not normally about in the daytime.
During the daylight hours they lie up in hiding, where enemies have no hope of
finding them. Their coloration protects them; the strange drab(黄褐色的) feathering,
so unlike that of most birds, gives them a cloak(伪装)of invisibility while they
sleep. And when night falls, out they come to scratch in the ground and find
worms and feed to their hearts’ content. They couldn’t do that so effectively if they didn’t have another peculiarity that I have not mentioned yet. The nostrils(鼻孔) of most birds open high up near the base of the beak(猛禽的嘴), but the kiwi wears his nostrils right near the tip of the long bill. That’s good for a bird that feeds in th A. it stays out of sight and sleeps during the day B. it usually goes from place to place during the day C. it changes the colour of its feather in the daytime D. it is caught and eaten by its enemy in the daytime [单项选择]Why has interest in POP been slow to develop
A. Most other forms of advertising are cheaper. B. The displays are difficult to set up. C. Managers need to make large initial investments. [单项选择]Why has the man decided to leave the company
A. He is not equal to the job. B. He is not well paid for his work. C. He doesn’t think the job is challenging enough. D. He cannot keep mind on his work. [简答题]Why has the funding gap between what students can afford and what higher education costs got wider and wider
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